Distribution method and system for midamble in space division multiple address (SDMA) system

A technique of training sequence and space division multiple access, applied in the transmission system, electrical components, etc., can solve the problems of SDMA user channel estimation quality degradation, midamble codes are easy to be polluted, etc., to reduce midamble code interference and improve estimation quality
CN101771433AInactive Publication Date: 2010-07-07ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2010-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention is suitable for the field of mobile communication, and provides a distribution method and a system for midambles in a SDMA system. The method comprises the following steps: acquiring the number of SDMA users in the system; distributing different midamble deviations to each SDMA user according to the number of users; and indicating the distributed midamble deviations to the SDMA users. By using the method, different midamble deviations are distributed to the SDMA user, and the distributed midamble deviations are indicated to the SDMA users, thereby reducing the midamble code interferences among the SDMA users and enhancing the estimated quality of SDMA user channels.
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Description

technical field

[0001] The present invention relates to a mobile communication system, in particular to a method and system for distributing a training sequence (hereinafter referred to as midamble) in a space division multiple access system. Background technique

[0002] SDMA (Spatial Division Multiplex Access, Space Division Multiple Access) technology utilizes space division among different users to form different channels, and spatially isolated users reuse the same physical resources, thereby achieving the purpose of improving the capacity of the mobile communication network.

[0003] According to existing protocol requirements, in order to support multi-user HSDPA (High Speed ​​Downlink Packages Access) services, the HSDPA system generally adopts a default training sequence (hereinafter referred to as midamble) allocation scheme. The default midamble code allocation scheme means that the UE generates midamble offsets according to the allocated channelization codes, and...

Claims

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